It can mean "a" or "an", depending on context. It can also mean "one" describing a feminine noun. Example: Tengo una manzana. "I have an apple". Tú tienes una mesa. "You have a table". Yo tengo una. (referring to the table) "I have one".
Una mano is Spanish for 'a hand'
Una bolsa is spanish for "a bag"
"Spanish una agenda" translates to "a planner" in English.
a hand
"Una cuadernos" is not grammatically correct in Spanish. "Una cuaderno" would mean "a notebook" in English.
a blonde (woman)
a legLeg
It is Spanish for "a window.
Where is one?
That is Spanish for "There is a girl".
"Soy una persona" means "I am a (or one) person".
una fecha is a date ...i.e January 6th